Highly transparent, highly resilient, smooth thermoplastic elastomer material

Abstract

The invention belongs to the technical field of thermoplastic elastomers, and particularly relates to a high-transparency, high-resilience and smooth thermoplastic elastomer material which is prepared from the following components in parts by weight: 94.5-99.9 parts of a high-transparency and high-resilience thermoplastic elastomer material and 0.1-5.5 parts of a smooth aid, and the slipping auxiliary agent is phenyl methyl silicone oil with the refractive index of 1.47 to 1.51. According to the high-transparency, high-resilience and smooth thermoplastic elastomer material disclosed by the invention, the high-transparency, high-resilience and smooth thermoplastic elastomer material is adopted as a base material, so that the transparency and resilience of a catheter are ensured, the internal liquid circulation condition is convenient to observe, the resilience is good, and the catheter is not easy to block due to twisting; the phenyl methyl silicone oil with the refractive index of 1.47-1.51 is adopted as the slipping aid to be added into the thermoplastic elastomer material, and the refractive index of the phenyl methyl silicone oil is close to that of the thermoplastic elastomer material, so that the transparency of the material is not influenced while the slipping function is realized, and the material is suitable for transparent conduits.

Description

technical field [0001] The application belongs to the technical field of thermoplastic elastomers, and in particular relates to a thermoplastic elastomer material with high transparency, high resilience and smoothness. Background technique [0002] Thermoplastic elastomer (TPE) is a kind of polymer material that has the elasticity of rubber at room temperature and can be plasticized at high temperature. Hydrogenated styrene-based thermoplastic elastomer is a polymer with a three-block structure, and its two ends are polystyrene, which acts as physical cross-linking points at room temperature to provide strength; its middle block is amorphous hydrogenated polybutadiene And / or hydrogenated polyisoprene to provide elasticity. Although hydrogenated styrene-based thermoplastic elastomers are in a microphase-separated state at room temperature, the refractive index of the polystyrene dispersed phase (refractive index is about 1.59) and the amorphous rubber continuous phase (refra...

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Problems solved by technology

[0005] When thermoplastic elastomer materials are used to make transparent catheters, compared with existing PVC catheters, conventional TPE catheters have low transparency (affecting the observation of internal liquid circulation), sticky surfaces, and easy kinks (that is, poor rebound and softness). Tube kinks will cause occlusion) and other shortcomings, which have affected the industrial process of TPE catheters replacing PVC catheters

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